element: When removing a ghost pad also unset its target

Otherwise the proxy pad of the ghost pad still stays linked to some
element inside the bin, which is not allowed anymore according to the
topology.

In 2.0 this should be fixed more generically from inside GstGhostPad but
currently there is no way to get notified that the ghost pad is
unparented.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/553>
This commit is contained in:
Sebastian Dröge 2020-07-02 11:21:27 +03:00 committed by GStreamer Merge Bot
parent f836e267c1
commit d22813ef97

View file

@ -95,6 +95,7 @@
#include "gstbus.h" #include "gstbus.h"
#include "gsterror.h" #include "gsterror.h"
#include "gstevent.h" #include "gstevent.h"
#include "gstghostpad.h"
#include "gstutils.h" #include "gstutils.h"
#include "gstinfo.h" #include "gstinfo.h"
#include "gstquark.h" #include "gstquark.h"
@ -884,6 +885,16 @@ gst_element_remove_pad (GstElement * element, GstPad * pad)
gst_object_unref (peer); gst_object_unref (peer);
} }
/* if this is a ghost pad we also need to unset the target or it
* will stay linked although not allowed according to the topology.
*
* FIXME 2.0: Do this generically somehow from inside GstGhostPad
* when it gets unparented.
*/
if (GST_IS_GHOST_PAD (pad)) {
gst_ghost_pad_set_target (GST_GHOST_PAD (pad), NULL);
}
GST_OBJECT_LOCK (element); GST_OBJECT_LOCK (element);
/* remove it from the list */ /* remove it from the list */
switch (gst_pad_get_direction (pad)) { switch (gst_pad_get_direction (pad)) {